Keratome method and apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 4, 2000
Grant Date -
N/A
app pub date -
Aug 12, 1998
filing date -
Aug 12, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A keratome for performing corneal resectioning. The keratome has a positioning ring to position an eyeball with the cornea protruding through the ring to be restrained by an applanation shoe surface, which may be pivoted away. A blade is suspended from its ends by a blade support which is driven by a drive mechanism, so that the blade describes a forward path between the positioning ring and the applanation shoe at a controlled distance from the applanation shoe reference surface while also oscillating laterally, and preferably without the blade or the blade support touching either the positioning ring or the applanation shoe. A guide may be disposed parallel to the blade edge to control resectioning thickness. Drive control and vacuum for the positioning ring are provided under user command by a control unit having user inputs.
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